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Details on Person UniProt:Q13733 ATP1A4

Class:IdReferenceGeneProduct:49226
_chainChangeLogchain:1-1029 added on Fri February 6 2015
_displayNameUniProt:Q13733 ATP1A4
_timestamp2025-05-21 21:35:10
chainchain:1-1029
checksum69958248424D2C0B
commentFUNCTION This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients. Plays a role in sperm motility.CATALYTIC ACTIVITY K(+)(out) + Na(+)(in) + ATP + H2O = K(+)(in) + Na(+)(out) + ADP + phosphate + H(+)ACTIVITY REGULATION Specifically inhibited by an endogenous cardiac glycoside, ouabain.SUBUNIT The sodium/potassium-transporting ATPase is composed of a catalytic alpha subunit, an auxiliary non-catalytic beta subunit and an additional regulatory subunit.INTERACTION In mature sperm, located in the principle piece of the sperm flagellum.ALTERNATIVE PRODUCTS Specifically expressed in testis. Found in very low levels in skeletal muscle. Expressed in mature sperm (at protein level).SIMILARITY Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IIC subfamily.SEQUENCE CAUTION Truncated N-terminus.SEQUENCE CAUTION Truncated N-terminus.
descriptionrecommendedName: fullName evidence="8"Sodium/potassium-transporting ATPase subunit alpha-4 shortName: Na(+)/K(+) ATPase alpha-4 subunit ecNumber evidence="2"7.2.2.13 alternativeName: Sodium pump subunit alpha-4
geneNameATP1A4
ATP1AL2
identifierQ13733
isSequenceChangedFALSE
keyword3D-structure
Alternative splicing
ATP-binding
Cell membrane
Ion transport
Magnesium
Membrane
Metal-binding
Nucleotide-binding
Phosphoprotein
Potassium
Potassium transport
Proteomics identification
Reference proteome
Sodium
Sodium transport
Sodium/potassium transport
Translocase
Transmembrane
Transmembrane helix
Transport
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9939033] Weiser, Joel, 2025-02-21
[InstanceEdit:9948485] Weiser, Joel, 2025-05-21
nameATP1A4
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:9004546] ENSEMBL:ENSG00000132681 ATP1A4 [Homo sapiens]
secondaryIdentifierAT1A4_HUMAN
Q504T2
Q7Z4I9
Q8TBN8
Q8WXA7
Q8WXH7
Q8WY13
sequenceLength1029
species[Species:48887] Homo sapiens
(isoformParent)[ReferenceIsoform:143616] UniProt:Q13733-2 ATP1A4 [Homo sapiens]
[ReferenceIsoform:405655] UniProt:Q13733-1 ATP1A4 [Homo sapiens]
(referenceEntity)[EntityWithAccessionedSequence:936914] ATP1A4 [plasma membrane] [Homo sapiens]
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